The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 1989
Filed:
Mar. 20, 1987
Applicant:
Inventors:
Assignee:
Toshiba Ceramics Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210182 ; 2101953 ; 210258 ; 210295 ; 2105101 ;
Abstract
An activated sludge treatment apparatus in which waste water is introduced into a sludge tank and an activated sludge treatment is performed in said sludge tank, the improvement characterized in that a ceramic filter is provided in a passage through which waste water as effluent from said sludge tank is to be passed, and the waste water is allowed to pass through the interior of said ceramic filter and thereby separated into activated sludge and treatment water.